materials compression vs tension epoxy + carbon fiber concrete + rebar fiberglass FR1, FR4 tire adobe wood fiber chopped, filament, tape, fabric glass carbon aramid natural: cotton, linen, silk, bamboo, wood, ... matrix epoxy polyester phenolic urethane wax cement natural: plant resins, sugars, ... processes open, closed mold wet lay-up, pre-preg, resin transfer vacuum bagging autoclave smart tool pultrusion molds machined folded press-fit skinned forms radius of curvature skins, ribs, spars cores digital safety particles, respirators fumes, ventilation gloves, safety glasses net-shape vendors Smooth-On US Gypsum West System Jamestown Distributors Fiberglass Supply Aremco Ashland DuPont Urethane Soy Systems US Composites Hexcel Exel Gurit Toray Spirit AeroSystems welding arc MIG (metal inert gas) TIG (tungsten inert gas) spot ultrasonic assignment (due 12/6) starting from a computer model, make a fiber composite structure extra credit: weld something gurus CBA shop section: Arch. shop section: lab sections CBA shop section: Kenny Cheung Arch. shop section: Nadya Peek welding: John DiFrancesco, Tom Lutz